Vitya is going to marry the love of his life, Masha, and the evening before the wedding he goes out for a drink with friends. The next morning he wakes up with a terrible hangover and remembers nothing of the events of the previous night, and his fiancée leaves him and leaves. Vitya is crushed, he prays to heaven to return his wedding day to fix everything. And - oh, miracle. - the next morning he wakes up again on September 3 - a day that has long become a meme in Russia.